Dynamic Dropdown cannot validate

Since the latest updates when a select is dynamically populated (using wpcf7_form_tag_data_option or simply wpcf7_form_tag) it cannot be validated because the validation probably checks for unexisting value in backend.
The validation fails on frontend already before any submission and from my console I cannot see any ajax execution which could be pointed as responsible for the validation.
I already attempted to bypass validation adding some custom code using the filter “add_filter(‘wpcf7_validate_select*’, ‘dateviaggio_validation_filter’, 100, 2);”
but with no success.